EP0890745A3 - Motor-driven blower and method of manufacturing impeller for motor-driven blower - Google Patents

Motor-driven blower and method of manufacturing impeller for motor-driven blower Download PDF

Info

Publication number
EP0890745A3
EP0890745A3 EP98112295A EP98112295A EP0890745A3 EP 0890745 A3 EP0890745 A3 EP 0890745A3 EP 98112295 A EP98112295 A EP 98112295A EP 98112295 A EP98112295 A EP 98112295A EP 0890745 A3 EP0890745 A3 EP 0890745A3
Authority
EP
European Patent Office
Prior art keywords
motor
driven blower
plate
front plate
impeller
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP98112295A
Other languages
German (de)
French (fr)
Other versions
EP0890745B1 (en
EP0890745A2 (en
Inventor
Takeshi Ing. Obana
Kiyomi Ing. Nakamura
Masahisa Ing. Inagaki
Yasuhisa Ing. Aono
Hisanori Ing. Okamura
Hisao Ing. Suka
Fumio Ing. Jyoraku
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of EP0890745A2 publication Critical patent/EP0890745A2/en
Publication of EP0890745A3 publication Critical patent/EP0890745A3/en
Application granted granted Critical
Publication of EP0890745B1 publication Critical patent/EP0890745B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/02—Selection of particular materials
    • F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/30—Vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/20—Manufacture essentially without removing material
    • F05D2230/21—Manufacture essentially without removing material by casting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/20—Manufacture essentially without removing material
    • F05D2230/23—Manufacture essentially without removing material by permanently joining parts together
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/20—Manufacture essentially without removing material
    • F05D2230/23—Manufacture essentially without removing material by permanently joining parts together
    • F05D2230/232—Manufacture essentially without removing material by permanently joining parts together by welding
    • F05D2230/237—Brazing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/50—Building or constructing in particular ways
    • F05D2230/53—Building or constructing in particular ways by integrally manufacturing a component, e.g. by milling from a billet or one piece construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/90—Coating; Surface treatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/10—Metals, alloys or intermetallic compounds
    • F05D2300/12—Light metals
    • F05D2300/125—Magnesium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/10—Metals, alloys or intermetallic compounds
    • F05D2300/17—Alloys

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Hybrid Cells (AREA)

Abstract

Reduction of air resistance which acts on the conventional motor-driven blower is limited because crushed protrusions are formed by staking on the surface of the plate of the impeller of the motor-driven blower, and the air resistance is a significant impediment to the increase of the operating speed of the motor-driven blower.
An impeller comprises a front plate (101) having a suction opening (801), a back plate (102) disposed opposite to the front plate (101), and a plurality of blades (103) disposed between the front plate (101) and the back plate (102). At least either the front plate (101) or the back plate (102) is formed integrally with the blades (103).
EP98112295A 1997-07-11 1998-07-02 Motor-driven blower and method of manufacturing impeller for motor-driven blower Expired - Lifetime EP0890745B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP18623097A JP3675115B2 (en) 1997-07-11 1997-07-11 Electric blower and method of manufacturing impeller used for this electric blower
JP18623097 1997-07-11
JP186230/97 1997-07-11

Publications (3)

Publication Number Publication Date
EP0890745A2 EP0890745A2 (en) 1999-01-13
EP0890745A3 true EP0890745A3 (en) 1999-02-03
EP0890745B1 EP0890745B1 (en) 2003-10-01

Family

ID=16184642

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98112295A Expired - Lifetime EP0890745B1 (en) 1997-07-11 1998-07-02 Motor-driven blower and method of manufacturing impeller for motor-driven blower

Country Status (6)

Country Link
US (1) US6146094A (en)
EP (1) EP0890745B1 (en)
JP (1) JP3675115B2 (en)
KR (1) KR100304230B1 (en)
DE (1) DE69818562T2 (en)
TW (1) TW428069B (en)

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KR100369919B1 (en) * 1999-03-03 2003-01-29 미쓰비시덴키 가부시키가이샤 Fan, a method of molding molden metal for fan, and a device or molding molden metal for fan
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US6854960B2 (en) 2002-06-24 2005-02-15 Electric Boat Corporation Segmented composite impeller/propeller arrangement and manufacturing method
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KR20040104971A (en) * 2003-06-03 2004-12-14 삼성전자주식회사 Turbofan and manufacturing method thereof
KR20040104772A (en) * 2003-06-03 2004-12-13 삼성전자주식회사 Turbofan and air conditioner with the same
KR20040104974A (en) * 2003-06-03 2004-12-14 삼성전자주식회사 Turbofan and mold for manufacturing the same
GB0326233D0 (en) * 2003-11-11 2003-12-17 Power Technologies Invest Ltd System and method for pulverising and extracting mositure
JP4716750B2 (en) * 2005-02-18 2011-07-06 日本電産コパル電子株式会社 Blower
JP4504860B2 (en) * 2005-04-05 2010-07-14 株式会社丸山製作所 Impeller for centrifugal blower
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JP5061836B2 (en) 2007-10-10 2012-10-31 株式会社日立プラントテクノロジー Impeller welding method and impeller
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JP5378857B2 (en) * 2009-03-27 2013-12-25 株式会社山田製作所 Manufacturing method of closed impeller
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IT1397057B1 (en) 2009-11-23 2012-12-28 Nuovo Pignone Spa CENTRIFUGAL AND TURBOMACHINE IMPELLER
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KR102126866B1 (en) * 2013-08-07 2020-06-25 한화파워시스템 주식회사 Impeller assembly of fluid rotary machine and manufacturing method thereof
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JP7149174B2 (en) 2018-12-10 2022-10-06 ダイキン工業株式会社 Closed impeller and manufacturing method thereof
CN114258461A (en) * 2019-08-13 2022-03-29 艾默生环境优化技术有限公司 Method for manufacturing a shrouded impeller, shrouded impeller and compressor
KR102320558B1 (en) * 2020-02-18 2021-11-02 엘지전자 주식회사 Impeller and method of manufacturing the same
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Also Published As

Publication number Publication date
DE69818562D1 (en) 2003-11-06
KR100304230B1 (en) 2001-12-31
JP3675115B2 (en) 2005-07-27
US6146094A (en) 2000-11-14
TW428069B (en) 2001-04-01
KR19990013794A (en) 1999-02-25
EP0890745B1 (en) 2003-10-01
EP0890745A2 (en) 1999-01-13
JPH1130195A (en) 1999-02-02
DE69818562T2 (en) 2004-08-05

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